Machine for reducing rags or paper.



PATENTED AUG. 27, 1907; J. L. PERKINS & J. 0. STANLBY.. MACHINE FORREDUCING RAGS 0R PAPER.

3 SHEETS-SHEET 2.

APPLICATION FILED DEO.14.1906.

No. 864,552. 1 PATENTED AUG. 27, 1907. J. L. PERKINS & J. O. STANLEY.

MACHINE FOR REDUCING RAGS 0R PAPER.

APPLIOATION FILED nno.14,19oa.

3 SHEETS-SHEET 3.

\ 'jzy j UNITED j sTAipsr rENT OFFICE.

JOHN L. PERKINS AND JOHN O. STANLEY, OF HOLYOKE, MASSACHUSETTS.

MACHINE FOR REDUCING BAGS OR PAPER.

Specification of Letters Patent.

Application filed December 14, 1906. Serial N0- 347,834.

Patented Aug. 27, 1907.

suitably small, and more or less nearly similarly shaped and uniformlysized pieces.

An object of the invention is to devise a machine for the purposeindicated which has the capability of a large amount of stock reductionin a given time.

Another object is to so construct the machine that it may have a longlife, notwithstanding the wear to which the parts, especially the shearscomprised therein, are subjected. Another object of the invention is toso construct the machine that the shear comprising parts therein becomeself sharpening. And another object of the invention is to so constructthe machine that it is of great durability.

The invention is described in conjunction with the accompanying drawingsand the particular features thereof are covered in the claims.

In the accompanying drawings,Figure 1 is a plan unusual simplicity, ofcheapness of manufacture, and

view of the machine; Fig. 2 is a sectional elevation as taken on line2-2, Fig. 1; Fig. 3 is a perspective view, with parts broken away, ofthe portion of the machine which is herein termed the fixed bed plate.Fig.

4 is a perspective representation of some of the individual teeth andspacing-blocks comprised in the bed plate; Fig. 5 is a perspective viewillustrating abed plate of modified form.

Similar characters of reference indicate corresponding parts in all ofthe views.

In the drawings,-A represents the frame of the machine comprisingopposite upright sides 10, 10, having L-shaped lugs 12, 12, on the innerfaces thereof, each provided with an aperture 13.

13 represents a rotatable body or cylinder journaled in said frame andhaving essentially one, and in practice preferably a plurality ofhelically extending series of outwardly projecting separated taperedteeth 14, 14. The shaft orarbor of the rotatable body B has a large spurgear wheel 15 thereon, meshing into which is a considerably smaller spurgear wheel 16 affixed on the driving shaft 17 to which the drivingpulley 78 is provided whereby the rotation of the shaft through means ofa belt may be accomplished for the driving of the rotatable toothcarrying body' at appropriate speed and with great power. g v

G represents the portion of the machine, which, as an. entirety, isherein termed the bed plate, the

same having a series of separated teeth evenly spaced I and arranged ina horizontal line parallel with the a'xis of the cylinder 13 andpositioned so that the teeth revolubly carried by the cylinderwillsucccssively pass with shearing actions in close contact with thesurfaces of, and through the. spaces between, the teeth of the bedplate, which latter teeth are tapered so that both sets of teeth and thewalls of the intermediate spaces between the individual teeth arecomplemental to each other.

Describing the bed plate exactly as constructed and mounted in thepreferred form, it will be perceived i that the same comprises anL-shaped bar a having appurtenant thereto and located above the ledgeportion 18 thereof, a section 19 in the form of a rigid metallic strap,arranged vertically adjustable relatively to the part 18 by the screws20 which have thread engagements vertically through such portion 18 withupper end supporting bearings against the underside of the section 19.The L-shapcd bar is supported at its end portions on the aforementionedopposite L-shaped lugs 12 of the frame sides. The series of teeth b ofthe bed plate are constituted by tooth sections in the form ofcomparatively vertically long, or high, steel blocks, the bases of whichrest on the vertically adjustable section 19. The upper ends of the saidtooth sections or blocks extend considerably above the upper edge of theL-shaped bar a, all terminating at a normal level more or less nearlycorresponding to that of the axis line of the cylinder B. The blocks areat their upper end portions forwardly tapered, as indicated at 22,conformable to the tapering or beveling of the teeth projectingoutwardly from the cylinder.

23 represents spacing blocks between the tooth sections, the same beingof the same height as such tooth sections, but of considerably lesswidth so as to leave the proper tooth spacing and to constitute, bytheir upper forward portions, shear edges 24, against which the pointsof the cylinder teeth coact, while the sides of the cylinder teeth coactwith the lateral edges or upper corners of the said tooth sections, Theupper bed plate surface, constituted by the upper ends of the closelyunited tooth sections and spacing blocks, is one that is horizontal andflush. The blocks 25, shorter than the tooth sections and spacingblocks, are provided between the lower portions of the tooth sectionsand are positioned facewise against the spacing blocks.

d represents a clamping plate of the same length as the L-shaped bar orbody a of the bed plate. --This clamping plate is firmly secured on theforward edge of the horizontally disposed ledge member 18 of theaforesaid bar a, being secured by the screws 27, and tightly binds allof the tooth sections and spacing blocks, so that when united the toothcomprising" plate is to all intents and purposes the same as ifintegrally made. V

The bed plate bar a has end cheeks or right angular vertical lugs 28,28, to constitute stops against which may be positioned thetoothsections and intermediate blocks, and also against which engage theinner ends of screws 30 which have thread engagements horizontallythrough the frame sides in a line of the length of the bar a. Thesescrews 30 are available for positioning and holding the tooth comprisingbed plate positioned with exactness, so that the centers of the spacesbetween the bed plate teeth will be coincident with the centers of theteeth of the cylinder.

32, 32, represent adjusting screws passing through the lugs 12 at theinner portions of the frame sides in lines at right angles to the lengthof the bed plate bar a and with bearings against the back thereof; and33, 33, represent a pair of screws extending horizontally looselythrough the apertures 13 therefor in the aforesaid opposite side lugs12, and with screw thread engagements into the opposite end portions ofthe bar a. By loosening the screws 33 and turning up the screws 32 thebed plate may be bodily set forwardly in slight extents, towards theaxis of the cylinder, as may be required from time to time inconsequence of the wearing away of the shearing parts, more especiallythe teeth of the cylinder. And after the bed plate shall have beenslightly forwardly moved, the" confining screws 33 are again tightenedso that their heads hind against the rear side of the lugs 12 outside ofthe margins of the slot 13. The slots 13 are made slightly wider thanthe diameter of the shanks of the screws 33 so that there may be aslight play of the screws horizontally in an endwise adjustment of thebed plate, see Fig. 1.

ff represent a pair of feed rolls to the rear of the bed plate teethwith their nipping part adjacent peripheral portions at or slightlyabove the level of the tops of the bed plate teeth; and g represents achute or guide for the rags or. other stock to be brought to reducingaction by the machine. The said feed rolls are geared together at oneend of each, 37 representing the intermeshing spur gears therefor; andthe lower feed roll has on the opposite end from that on which issecured one of the gears 37 a larger spur gear wheel 38 which mesheswith a spur gear wheel 39 which is fast on the arbor, or integrallyformed journal, of the cylinder B,- this last mentioned gearingconstituting the driving means for the feed rolls.

The stock fed to and through the feed rolls and advanced forwardlytherebeyond over the teeth of the bed plate is cut into four sided smallpieces, the shapes thereof corresponding to those of the eomplemental.

teeth of the bed plate cylinder; and because of the helical arrangementof each of the endwise arranged rows or series of the cylinder teeth, acylinder tooth at one end reaches the shearing plane and performs itsindividual cutting action slightly before the next revolving cylindertooth of the same series, so that there is a distribution, as to time,within the period of passage of a helical series of cylinder teeth pastthe bed plate teeth, of the shearings performed by and betweenindividual pairs of the teeth.

The teeth of one of thetooth comprising bodies in this machine,preferably those of the cylinder, are composed of a softer metal thanare the teeth of the relatively opposed body, and in practice the bedplate teeth are composed of steel, hardened; and the cylinder with itsoutwardly extending teeth arranged in gradually sweeping helical linesis made of cast iron. Consequently the cylinder teeth are selfsharpening in their shearing passages through'and in relation to theharder bed plate teeth. From time to time as the cylinder teeth areperceived to have been worn away, the bed plate isvery' slightlyforwardly adjusted, the provisions for which have been hcreinabovepointed out,so that the complemental sets of teeth will bottom and be inshearing contact at all of the tooth sides and intermediate walls.

The cylinder teeth are constructed with reinforcing rearribs or webs 45whereby liability of .tooth breakage is lessened.

The bed plate maybe bodily taken out from the maworn and dull at thecorners or shear edges of'and between the bed plateteeth; and tocompensate for any reduction in the height of the teeth, the toothseries may be bodily slightly elevated by the adjusting screws 20operable to slightly raise the movable bed plate section 19 on which theseries of individual tooth sections and their spacing blocks rest.

As hereinabove intimated, the bed plate is to all intents and purposesan' entirety, or the same as if integrally made, so far as its functionis concerned, for a given period of effective operativeness; but bymaking it sectional as regards the individual tooth sections, the latterare susceptible of being made of very simple and easily produced formsfrom good steel and satisfactorily hardened, and wear compensationprovided for.

In Fig. 5 a bed plate is represented in which the tooth sections b arehorizontally arranged and clamped within an L-shaped bar a the longerdiameter of which latter is also horiz0ntal,the object of thisillustration being to indicate that the precise formation andarrangement of a bed plate such as represented in the precedingviewsneed not necessarily be strictly followed, although such is thepreferred one for reasons of practicability and expediency.

It will be seen that, in both the form of bed plate illustrated in Fig.5 and that shown in the remaining views, the fixed tooth members aremounted in what is, in effect, a casing, composed of the L-shaped barwith its end members, and the clamping plate. In both forms, also, meansis provided for adjusting the tooth members, and the spacing members, inand out of the open side of the casing.

A machine made in accordance with this invention is especially availablefor the reduction of rags for paper stock; and such machine has alsobeen extensively utilized in the manufacture of confetti from tissuepaper.

We claim:

1. In a machine of the character described, the combination of a fixedbody comprising a series of spaced teeth. a rotatable body carryingteeth complemental to said other teeth and arranged to pass therehetweenwith a shear action, and means for securing relative adjustment of saidbodies in a direction tangential to said rotatable may.

2. In a machine of the character described, in eomhlna sous:

tion, a iixed series of separated teeth, and '1 rotatable body having aseries of teeth complemental ,to those of the fixed series and adaptedto pass with a shear action therebelwcen, and means for adjusting thefixed series tsngem, iiaiiy of therotatable body.

ii. In a machine of the character described, in combination, a iixedseries of separated teeth,-and a rotatable body having a series of teethcomplcmcntal to those of the 'iixed series and adapted to pass with ashear action therebetween, means for adjusting the-series of'iixed teethin a direction towards ihe rotatable body, means for adjusting saidseries parallel tothe axis of the rotatable body, and

means for adjusting the series tangentially of said rotatable body.

4. In a machine of the character described, the combiuatlon of a holdercasing, a series of spaced independent'tooth members projectingtherefrom, and means for clamping said series rigidly within the casing,and of a rotatable body having projecting spaced teeth arranged to passwith a shearing action between said other teeth.

5. In a machine of the character described, the combinalion of a fixedholder casing, a series of spaced independent looi'li members projectingtherefrom, spacing members allernating with said tooth members, andmeans for clampin; said series endwlse rigidly within the casing, and ofa rotatable body having projecting spaced teeth arranged to pass with ashearing action between said tooth members.

ii. in a machine of the character described, the combination or a holdercasing having one side removable, a series of spaced independent teethprojecting from said casing and clamped therein by said removable side,and a rotatable body having a series of spaced projecting teeth teeth.

I. In a machine of the character described, the combinatlon of a holdercasing, a series of spaced tooth members projecting therefrom, and meansfor adjusting said series within the casing. and of a rotatable bodyhaving a series of spaced projecting teeth arranged to pass with ashearing action between said tooth members.

8. in a machine of the character described, the combination of a holdercasing having one side open, a series of spaced independent teethprojecting from said casing, and means for adjusting said seriessimultaneously in the direction of their length in and out of such openside, and of a rotatable body having a series of spaced projecting teetharranged to pass with a shearing action between said other teeth.

9. in a machine of the character described, the combinalion of a holdercasing. a series of spaced independent teeth projecting from saidcasing, means for adjusting said scl'ies simultaneously in and out ofsaid casing, and means for adjusting said casing at right angles to thelast mentioned adjustment, and of a rotatable body having a series ofspaced projecting teeth arranged to pass with a shearing action betweenthe teeth within the casing.

10. In a-machine of the character described, the combination or a holdercasing, means for adjusting said casing in two directions at rightangles to each other, a series of spaced independent tooth membersprojecting from said casing, and means for adjusting said seriessimultaneously in and out of the casing at right angles to said otheradjustments, and of a rotatable body having a series of spacedprojecting teeth arranged to pass with a shearing action between thetooth members.

11. in a machine of the character described, the combination with afixed bed-plate comprising a series of separated forwardly taperedteeth, of a rotatable cylindrical body having a series ofcorrespondingly tapered teeth arranged along the length of, and extendedoutwardly from the side of such cylinder and operable as an interdentaishears in conjunction with the bed plate teeth, means for rotating thecylinder and means for securing an adjustment of one of the tooth seriesin a direction towards the other.

12. in a machine of the character described, the combination with afixed bed-plate comprising a series of separated teeth, of a rotatablecylindrical body having series of teeth arranged in helical lines alongthe length of and extended outwardly from the side of such cylinder,each of said teeth having a reinforcing rib at its rear side of thereof;

less thickness than the tooth, s d means for rotating the cylinder.

,13. In a machine of the character described, the combination with asupporting frame, a cylinder horinoutally mounted therein, having'sseries of separuted outwsrdly projecting teeth, and means for rotatingthe cylinder, of an L-shaped bar supported horinontslly by the frameporallel ,with the cylinder, s. series of separated tooth members,mounted on ssidhsr, and a clamping piste-secured to the bar and bindingthe tooth members against the back .14. in a machine of the characterdescribed, the comblnation with a sup xirting'framega cylinderhorlnontslly mounted-therein, havlnga sericslof separated outwardly Uailel with the cylinder, :1 seriesof separated tooth members, mounted onsaid her, a. clamping piste secured to the bar and binding the toothmembersngsinst the back thereof, and means appurtenant to said'lrshapedbar and operable toadjnst said tooth members vertically.

15. In a machine oi. the character described, the combination with asupportlngframe, a cylinder horizontally mounted therein, having aseries of separated outwardly projecting teeth, and means for rotatingthe cylinder, of an L-shaped bar supported horizontally by the frameparallel with the cylinder, a. series of separated tooth members,mounted on said bar, a clamping plate secured to the bar and binding thetooth members against the back thereof, and means for adjusting saidL'shaped bar forwardly towards the axis of the cylinder.

16. In a machine of the character described, the combination with asupporting frame, a. cylinder horizontally journaled therein, having aseries of separated outwardly projecting teeth, and means for rotatingthe cylinder, of an L-shaped bar supported horizontally by the frame parallel with the cylinder, a vertically adjustable section appurtenant tosaid bar and above the ledge portion thereof, a series of, individualseparated tooth members resting on said adjustable section and blocksbetween and of less width than said tooth members, having their upperends flush with the tops of such members and a clamping plate secured onthe front of the L-shaped bar having a clamping engagement against theforward faces of said teeth members.

17. In a machine of the character described, the combination with aframe comprising opposite upright sides having L-shaped lugs, on theinner faces thereof, provided with apertures and a rotatable bodyjournaled in said 'frame having a series of outwardly projectingseparated teeth, and means for rotating said l ody, of an L-shaped barextending between and supported by said lugs, a vertically adjustablesection above the ledge portion thereof, screws passing through saidledge portion and having adjusting engagements with said section, aseries of individual tooth members resting on said adjustable section,and bearing against the back of the L-shaped bar, a clamping plate andmeans for confining it on the L-shaped bar against the forward faces ofthe tooth members, spacing blocks between the tooth members, headedscrews having the shanks thereof extended loosely through the aperturesin said Lshaped lugs and screw engaged into the L-shaped bar, and screwsthreading through the Irshaped lugs and against the back of the L-shapedbar.

18. In a machine of the character described, the combination with afixed bed plate comprising a series of spaced teeth and a pair of feedrolls thereabove, geared together at one end, and one thereof having anadditional gear wheel at its other end, of a rotatable body having aseries of outwardly extended teeth operable as lnterdental shears inconjunction with the bed plate teeth, a driving shaft having a smallspur gear wheel thereon, a larger spur gear wheel connected with therotatable body in mesh with the driving shaft gear, and another spurgear wheel connected with said rotatable body and in driving connectionwith the gear wheel on one end of one of said feed rolls.

19. In a. machine of thecharacter described, the combination of a fixedcasing or holder, a movable strip therein, a series of spacedindependent tooth members projecting at &

one end without the casing and hearing at their other ends against saidsirlp. mean for mijnsling said sirip in carry 1 silk] inelh membersemlwlse, and a relalablr belly having a series 01 spat-ed prey-Mingieelh arranged in pass will: a shearing m-Hen beiwoen said tuulhmenrlwrs.

20. in a maehine of the eharaeier described, [he eemblmilieu of alixedeasing or holder a series of independent looih members projerlhn:therefrom, sparing members of less depth than said tenth members andnllernutlng iherewill: and having: iheir projeriing ends iiuah wiih ihebro- Jerlim: ends thereof. and means for einmping said several nn'mherswilhin the easing. and e! a'roiulahle member having a series 0| spnvellprojerling'leelh arranged to pass with a shearing :Iriien between saidionih memhers.

:11. In a marhine oi the character deserilx-d, the combilmiion of alixed'easing er imider,'a series of independenl ieulh members projectingiherei'rem, sparing members of lens depth than said tooth members andalternating therewith and also projecting without the casing, shortblocks eonLlgnuus the feces of said spacing members adjacent 20 theirinner ends and cempieting the filling of the inter- (ienial spares ai.these'regionsjund menus for clumping snlui several members and blockstogether within the easing, and of a roiatuhie body having a neries ofspaced pmjerting. teeth arranged to pass with a. shearing action 2between the teeth members and along the faces of said s ewing members.

Signed by us at llei'yoke, Mass., in presence of two subscribingwitnesses.

JOHN L. PERKINS. JOHN 0. S'IANLIGY.

Witnesses IN. S. Bmmews, (i. it. liulsmnn.

